1.\" Copyright (c) 1999 2.\" Nick Hibma <n_hibma@FreeBSD.org>. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.Dd January 27, 2020 26.Dt UMASS 4 27.Os 28.Sh NAME 29.Nm umass 30.Nd USB Mass Storage Devices driver 31.Sh SYNOPSIS 32To compile this driver into the kernel, 33place the following line in your 34kernel configuration file: 35.Bd -ragged -offset indent 36.Cd "device scbus" 37.Cd "device usb" 38.Cd "device umass" 39.Ed 40.Pp 41Alternatively, to load the driver as a 42module at boot time, place the following line in 43.Xr loader.conf 5 : 44.Bd -literal -offset indent 45umass_load="YES" 46.Ed 47.Sh DESCRIPTION 48The 49.Nm 50driver provides support for Mass Storage devices that attach to the USB 51port. 52.Pp 53To use the 54.Nm 55driver, 56.Xr usb 4 57and one of 58.Xr uhci 4 59or 60.Xr ohci 4 61or 62.Xr ehci 4 63or 64.Xr xhci 4 65must be configured in the kernel. 66Additionally, since 67.Nm 68uses the SCSI subsystem and sometimes acts as a SCSI device, it 69requires 70.Xr da 4 71and 72.Xr scbus 4 73to be included in the kernel. 74.Sh EXAMPLES 75.Bd -literal -offset indent 76device umass 77device scbus 78device da 79device pass 80.Ed 81.Pp 82Add the 83.Nm 84driver to the kernel. 85.Bd -literal -offset indent 86camcontrol rescan 0:0:0 87camcontrol rescan 0:0:1 88camcontrol rescan 0:0:2 89camcontrol rescan 0:0:3 90.Ed 91.Pp 92Rescan all slots on a multi-slot flash reader, where the slots map to separate 93LUNs on a single SCSI ID. 94Typically only the first slot will be enabled at boot time. 95This assumes that the flash reader is the first SCSI bus in the system and has 4 slots. 96.Sh SEE ALSO 97.Xr cfumass 4 , 98.Xr ehci 4 , 99.Xr ohci 4 , 100.Xr uhci 4 , 101.Xr usb 4 , 102.Xr xhci 4 , 103.Xr camcontrol 8 104.\".Sh HISTORY 105.Sh AUTHORS 106.An -nosplit 107The 108.Nm 109driver was written by 110.An MAEKAWA Masahide Aq Mt bishop@rr.iij4u.or.jp 111and 112.An Nick Hibma Aq Mt n_hibma@FreeBSD.org . 113.Pp 114This manual page was written by 115.An Nick Hibma Aq Mt n_hibma@FreeBSD.org . 116